APA (7th ed.) Citation

Barker, A. (1997). 30 minutes ..: Before a meeting. Kogan Page.

Chicago Style (17th ed.) Citation

Barker, Alan. 30 Minutes ..: Before a Meeting. London: Kogan Page, 1997.

MLA (8th ed.) Citation

Barker, Alan. 30 Minutes ..: Before a Meeting. Kogan Page, 1997.

Warning: These citations may not always be 100% accurate.